This study addresses two objectives: first to innovate, through utilizing an analyzer designed by one of us to design the bioelectric potential of blood whose value can be used for screening patients and healthy subjects; and secondly, to develop a novel diagnosis method. To date, there is no known method of determining the electric potential of blood. The method we propose is useful for determining the general functional state of the body, and it could indirectly indicate whether a specific organ is affected. This type of screening could be useful as an early diagnosis method. Future applications also include screening animals or plants. If a certain threshold is met, further investigations could be employed and thus an early diagnosis established before a disease becomes chronic.